32x: add SR masking in MAME sh2

[picodrive.git] / cpu / sh2 / mame / sh2pico.c

diff --git a/cpu/sh2/mame/sh2pico.c b/cpu/sh2/mame/sh2pico.c
index 34fd177..79264ac 100644 (file)
--- a/cpu/sh2/mame/sh2pico.c
+++ b/cpu/sh2/mame/sh2pico.c
@@ -33,6 +33,8 @@ typedef unsigned char  UINT8;
 
 #include "sh2.c"
 
+#ifndef DRC_TMP
+
 void sh2_execute(SH2 *sh2_, int cycles)
 {
        sh2 = sh2_;
@@ -96,3 +98,34 @@ void sh2_execute(SH2 *sh2_, int cycles)
        sh2->cycles_done += cycles - sh2->icount;
 }
 
+#else // DRC_TMP
+
+// tmp
+void __attribute__((regparm(2))) sh2_do_op(SH2 *sh2_, int opcode)
+{
+       sh2 = sh2_;
+       sh2->pc += 2;
+
+       switch (opcode & ( 15 << 12))
+       {
+               case  0<<12: op0000(opcode); break;
+               case  1<<12: op0001(opcode); break;
+               case  2<<12: op0010(opcode); break;
+               case  3<<12: op0011(opcode); break;
+               case  4<<12: op0100(opcode); break;
+               case  5<<12: op0101(opcode); break;
+               case  6<<12: op0110(opcode); break;
+               case  7<<12: op0111(opcode); break;
+               case  8<<12: op1000(opcode); break;
+               case  9<<12: op1001(opcode); break;
+               case 10<<12: op1010(opcode); break;
+               case 11<<12: op1011(opcode); break;
+               case 12<<12: op1100(opcode); break;
+               case 13<<12: op1101(opcode); break;
+               case 14<<12: op1110(opcode); break;
+               default: op1111(opcode); break;
+       }
+}
+
+#endif
+